sandyhookelementary. >> that campus will remain a crime scene indefinitely after friday's mass shooting. investigatessers are trying to determine why gunman adam lanza singled out the school, which he attended as a child. federallation say he fired guns at shoot -- federal agents say he fired guns at shooting ranges over the years but not recently. cbs reporter marly hall joins us from newtown with more on what's happening. >> reporter: good morning, michelle and brian. it's a week before christmas, and here in newtown, connecticut, many families aren't planning for the holidays but planning funerals and there are several planned in the weeks to come. it's back to school for the children of newtown, connecticut with the exception of the students of sandy hook elementary school. kenneth canfield is a fourth greater at sandy hook. he heard screaming and gunshots in the room he was in. >> it was being banged on by the gunman. >> reporter: kenneth and his classmates won't be returning to sandy hook elementary. when they do go back, they will attend chalk hill school in monroe. >>

service toremembersandyhookelementary principal dawn hochsprung. she died trying to stop the shooter after he broke into the school. >> you don't have to know her. you just have to know what she did is an act of selflessness and that touches humanity. >> reporter: hochsprung's funeral is just one of five that will be held today. tuesday saw two more children laid to rest. 6-year-old james mattioli loved sports and math. his family called him a numbers guy. and jessica rekos loved horses. she wanted a cowgirl hat for christmas. yesterday was a day of mixed emotions for many parents and students as school reopened in newtown for everyone except the kids who attend sandy hook elementary. >> so, like, surreal. >> reporter: there were some who stayed away. >> my neighbor up the street, her kid didn't come back. >> reporter: but there was also this: smiles from children who appeared to be happy to be going back to school. the tragedy here has reopened a debate on what kind of guns should be allowed in society, with many now taking a new look at the issue. there's a groundswell of support i